Camera optical lens

ABSTRACT

The present disclosure relates to an optical lens, in particular to a camera optical lens. The camera optical lens includes, from an object side to an image side in sequence: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens, the first lens has a positive refractive power, the second lens has a positive refractive power, and the third lens has a negative refractive power, and the camera optical lens satisfies the following conditions: −20.00≤f2/f3≤−10.00, and 0.50≤d1/d3≤3.00, where f2 denotes a focal length of the second lens, f3 denotes a focal length of the third lens, d1 denotes an on-axis thickness of the first lens, and d3 denotes an on-axis thickness of the second lens. The camera optical lens can obtain high imaging performance and a low TTL.

TECHNICAL FIELD

The present disclosure relates to an optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesor digital cameras, and camera devices such as monitors or PC lenses.

BACKGROUND

With an emergence of smart phones in recent years, a demand forminiature camera lens is gradually increasing, and a photosensitivedevice of a general camera lens is no other than a charge coupled device(CCD) or a complementary metal-oxide semiconductor (CMOS) sensor. Sincea progress of a semiconductor manufacturing technology makes a pixelsize of the photosensitive device smaller, a current development trendof electronic products is that their functions should be better andtheir shape should be thinner and smaller, the miniature camera lenswith good imaging quality has become a mainstream in the market. Inorder to obtain better imaging quality, the lens that is traditionallyequipped in a mobile phone camera adopts a three-piece or a four-piecelens structure. Besides, with a development of technologies and anincrease of diverse demands of users, and under a circumstance that apixel area of the photosensitive device is shrinking and a requirementof the system for the imaging quality is improving constantly, afive-piece, a six-piece and a seven-piece lens structure graduallyappear in a lens design. There is an urgent need for ultra-thinwide-angle camera lenses which have good optical characteristics andfully corrected chromatic aberration.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

To make objectives, technical solutions, and advantages of the presentdisclosure clearer, embodiments of the present disclosure are describedin detail with reference to accompanying drawings in the following. Aperson of ordinary skill in the art can understand that, many technicaldetails in the embodiments of the present disclosure are provided tomake readers better understand the present disclosure. However, evenwithout these technical details and any changes and modifications basedon the following embodiments, technical solutions required to beprotected by the present disclosure can be implemented.

Embodiment 1

Referring to the accompanying drawings, the present disclosure providesa camera optical lens 10. FIG. 1 shows the camera optical lens 10 inEmbodiment 1 of the present disclosure, and the camera optical lens 10includes six lenses. Specifically, the camera optical lens 10 includesfrom an object side to an image side in sequence: an aperture S1, afirst lens L1, a second lens L2, a third lens L3, a fourth lens L4, afifth lens L5 and a sixth lens L6. An optical element such as an opticalfilter GF can be arranged between the sixth lens L6 and an image surfaceS1.

The first lens L1, the second lens L2, the third lens L3, the fourthlens L4, the fifth lens L5, and the sixth lens L6 are made of plasticmaterials.

Herein, a focal length of the second lens L2 is defined as f2, a focallength of the third lens L3 is defined as f3. The camera optical lens 10satisfies the following condition: −20.00≤f2/f3≤−10.00, which specifiesa ratio of the focal length f2 of the second lens L2 and the focallength f3 of the third lens L3, to effectively reduce sensitivity of thecamera optical lens 10 for imaging and further improve imaging quality.Preferably, the camera optical lens 10 satisfies the followingcondition: −19.92≤f2/f3≤−10.00.

An on-axis thickness of the first lens L1 is defined as d1, an on-axisthickness of the second lens L2 is defined as d3. The camera opticallens 10 satisfies the following condition: 0.50≤d1/d3≤3.00, whichspecifies a ratio of an on-axis thickness of the first lens L1 and anon-axis thickness of the second lens L2. When the value is within thisrange, it is beneficial for a development towards ultra-thin andwide-angle lenses. Preferably, the camera optical lens 10 satisfies thefollowing condition: 0.51≤d1/d3≤2.95.

A total optical length from an object-side surface of the first lens L1to the image surface S1 of the camera optical lens along an optical axisis defined as TTL.

In the present disclosure, when the focal length f2 of the second lensL2, the focal length f3 of the third lens L3, the on-axis thickness d1of the first lens L1, and the on-axis thickness d3 of the second lens L2satisfy the above conditions, the camera optical lens 10 has anadvantage of high performance and satisfies a design requirement for alow TTL.

In this embodiment, an object-side surface of the first lens L1 isconvex in a paraxial region, an image-side surface of the first lens L1is concave in the paraxial region, and the first lens L1 has a positiverefractive power.

Herein, a focal length of the camera optical lens 10 is defined as f,and a focal length of the first lens L1 is defined as f1. The cameraoptical lens 10 satisfies the following condition: 0.73≤f1/f≤2.72, whichspecifies a ratio of the focal length of the first lens L1 and the focallength of the camera optical lens 10. When the value is within thisrange, the first has an appropriate positive refractive power, which isbeneficial for correcting an aberration of the camera optical lens 10and the development towards ultra-thin and wide-angle lenses.Preferably, the camera optical lens 10 satisfies the followingcondition: 1.17≤f1/f≤2.18.

A curvature radius of the object-side surface of the first lens L1 isdefined as R1 and a curvature radius of the image-side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 satisfies thefollowing condition: −5.72≤(R1+R2)/(R1−R2)≤−1.78, which reasonablycontrols a shape of the first lens, so that the first lens mayeffectively correct a spherical aberration of the camera optical lens10. Preferably, the following condition shall be satisfied:−3.58≤(R1+R2)/(R1−R2)≤−2.22.

The on-axis thickness of the first lens L1 is defined as d1, whichsatisfies the following condition: 0.03≤d1/TTL≤0.18. When the conditionis satisfied, it is beneficial for realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.05≤d1/TTL≤0.15.

In this embodiment, the second lens L2 has a positive refractive power.

The focal length of the camera optical lens 10 is defined as f, and thefocal length of the second lens L2 is defined as f2. The camera opticallens 10 satisfies the following condition: 7.19≤f2/f≤49.63. When thecondition is satisfied, a positive refractive power of the second lensL2 is controlled within a reasonable range, which is beneficial forcorrecting an aberration of the camera optical lens 10. Preferably, thefollowing condition shall be satisfied: 11.51≤f2/f≤39.71.

A curvature radius of the object-side surface of the second lens L2 isdefined as R3 and a curvature radius of the image-side surface of thesecond lens L2 is defined as R4 The camera optical lens 10 satisfies thefollowing condition: −7.05≤(R3+R4)/(R3−R4)≤6.26, which specifies a shapeof the second lens L2. When the value id within this range, with adevelopment towards ultra-thin and wide-angle lenses, it is beneficialfor solving a problem of on-axis aberration. Preferably, the followingcondition shall be satisfied: −4.41≤(R3+R4)/(R3−R4)≤5.01.

The on-axis thickness of the second lens L2 is defined as d3, whichsatisfies the following condition: 0.02≤d3/TTL≤0.20. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.03≤d3/TTL≤0.16.

In this embodiment, an image-side surface of the third lens L3 isconcave in the paraxial region, and the third lens L3 has a negativerefractive power.

The focal length of the camera optical lens 10 is defined as f and thefocal length of the third lens L3 is defined as f3. The camera opticallens 10 satisfies the following condition: −3.34≤f3/f≤−0.91. Anappropriate distribution of the refractive power leads to better imagingquality and lower sensitivity. Preferably, the following condition shallbe satisfied: −2.08≤f3/f≤−1.14.

A curvature radius of the object-side surface of the third lens L3 isdefined as R5 and a curvature radius of the image-side surface of thethird lens L3 is defined as R6 The camera optical lens 10 satisfies thefollowing condition: 0.50≤(R5+R6)/(R5−R6)≤2.01. A shape of the thirdlens L3 is effectively controlled, thereby facilitating shaping of thethird lens L3 and avoiding bad shaping and generation of stress due toan overly large surface curvature of the third lens L3. Preferably, thefollowing condition shall be satisfied: 0.80≤(R5+R6)/(R5−R6)≤1.61.

An on-axis thickness of the third lens L3 is defined as d5, whichsatisfies the following condition: 0.05≤d5/TTL≤0.17. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.08≤d5/TTL≤0.14.

In this embodiment, an object-side surface of the fourth lens L4 isconcave in the paraxial region and an image-side surface of the fourthlens L4 is convex in the paraxial region, and the fourth lens L4 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the fourth lens L4 is defined as f4. The camera opticallens 10 satisfies the following condition: 0.42≤f4/f≤1.33. When thecondition is satisfied, the appropriate distribution of the refractivepower makes it possible that the camera optical lens 10 has the betterimaging quality and lower sensitivity. Preferably, the followingcondition shall be satisfied: 0.67≤f4/f≤1.06.

A curvature radius of the object-side surface of the fourth lens L4 isdefined as R7 and a curvature radius of the image-side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 satisfiesthe following condition: 0.52≤(R7+R8)/(R7−R8)≤1.97, which specifies ashape of the fourth lens L4. When the value is within this range, withthe development towards ultra-thin and wide-angle lens, it is beneficialfor solving a problem like an off-axis aberration. Preferably, thefollowing condition shall be satisfied: 0.83≤(R7+R8)/(R7−R8)≤1.58.

An on-axis thickness of the fourth lens L4 is defined as d7, whichsatisfies the following condition: 0.04≤d7/TTL≤0.16. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.07≤d7/TTL≤0.13.

In this embodiment, an object-side surface of the fifth lens L5 isconvex in the paraxial region and an image-side surface of the fifthlens L5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the fifth lens L5 is defined as f5. The camera opticallens 10 satisfies the following condition: 1.34≤f5/f≤4.69, which caneffectively make a light angle of the camera lens gentle and reducetolerance sensitivity. Preferably, the following condition shall besatisfied: 2.15≤f5/f≤3.75.

A curvature radius of an object-side surface of the fifth lens L5 isdefined as R9 and a curvature radius of an image-side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 satisfiesthe following condition: −0.73≤(R9+R10)/(R9−R10)≤0.13, which specifies ashape of the fifth lens L5. When the value is within this range, withthe development towards ultra-thin and wide-angle lenses, it isbeneficial for solving the problem like the off-axis aberration.Preferably, the following condition shall be satisfied:−0.46≤(R9+R10)/(R9−R10)≤0.10.

An on-axis thickness of the fifth lens L5 is defined as d9, whichsatisfies the following condition: 0.03≤d9/TTL≤0.09. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.05≤d9/TTL≤0.08.

In this embodiment, an object-side surface of the sixth lens L6 isconvex in the paraxial region, an image-side surface of the sixth lensL6 is concave in the paraxial region. The sixth lens L6 has a negativerefractive power.

The focal length of the camera optical lens 10 is defined as f and afocal length of the sixth lens L6 is defined as f6. The camera opticallens 10 satisfies the following condition: −2.42≤f6/f≤−0.66. When thecondition is satisfied, the appropriate distribution of the refractivepower makes it possible that the camera optical lens 10 has the betterimaging quality and lower sensitivity. Preferably, the followingcondition shall be satisfied: −1.52≤f6/f≤−0.82.

A curvature radius of the object-side surface of the sixth lens L6 isdefined as R11 and a curvature radius of the image-side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 satisfiesthe following condition: 0.96≤(R11+R12)/(R11−R12)≤3.32, which specifiesa shape of the sixth lens L6. When the value is within this range, withthe development towards ultra-thin and wide-angle lenses, it isbeneficial for solving a problem like the off-axis aberration.Preferably, the following condition shall be satisfied:1.54≤(R11+R12)/(R11−R12)≤2.66.

An on-axis thickness of the sixth lens L6 is defined as d11, whichsatisfies the following condition: 0.04≤d11/TTL≤0.12. When the conditionis satisfied, it is beneficial for the realization of ultra-thin lenses.Preferably, the following condition shall be satisfied:0.06≤d11/TTL≤0.10.

In this embodiment, the focal length of the camera optical lens isdefined as f and a combined focal length of the first lens and thesecond lens is defined as f12. The camera optical lens 10 satisfies thefollowing condition: 0.69≤f12/f≤2.58. In this way, the aberration anddistortion of the camera optical lens may be removed, and a back focallength of the camera optical lens may be reduced, so thatminiaturization of the camera optical lens is maintained. Preferably,the following condition shall be satisfied: 1.10≤f12/f≤2.06.

In this embodiment, the TTL of the camera optical lens 10 is less thanor equal to 5.16 mm, which is beneficial for the realization ofultra-thin lenses. Preferably, the TTL of the camera optical lens 10 isless than or equal to 4.92 mm.

In this embodiment, an F number of the camera optical lens 10 is lessthan or equal to 2.06 mm. The camera optical lens 10 has a large Fnumber and better imaging performance. Preferably, the F number of thecamera optical lens 10 is less than or equal to 2.02 mm.

With such design, the TTL of the camera optical lens 10 can be made asshort as possible, thus the miniaturization characteristics can bemaintained.

In the following, an example will be used to describe the camera opticallens 10 of the present disclosure. Symbols recorded in each example areas follows. A unit of a focal length, an on-axis distance, a curvatureradius, an on-axis thickness, an inflexion point position and an arrestpoint position is mm.

TTL: a total optical length from an object-side surface of the firstlens to an image surface of the camera optical lens along an optic axis,with a unit of mm.

Preferably, inflexion points and/or arrest points can also be arrangedon the object-side surface and/or image-side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

Design data of the camera optical lens 10 in Embodiment 1 of the presentdisclosure is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.199 R1 1.651 d1= 0.573 nd1 1.5467 ν1 55.82R2 3.425 d2= 0.078 R3 −16.826 d3= 0.198 nd2 1.5467 ν2 55.82 R4 −10.324d4= 0.253 R5 −1099.533 d5= 0.483 nd3 1.6686 ν3 20.53 R6 3.242 d6= 0.103R7 −13.524 d7= 0.500 nd4 1.7543 ν4 44.94 R8 −1.847 d8= 0.364 R9 10.659d9= 0.294 nd5 1.5467 ν5 55.82 R10 −9.019 d10= 0.347 R11 3.410 d11= 0.348nd6 1.5369 ν6 55.69 R12 1.195 d12= 0.540 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.398

Meanings of the above symbols are as follows.

S1: Aperture;

R: curvature radius of an optical surface, or a central curvature radiusfor a lens;

R1: curvature radius of the object-side surface of the first lens L1;

R2: curvature radius of the image-side surface of the first lens L1;

R3: curvature radius of the object-side surface of the second lens L2;

R4: curvature radius of the image-side surface of the second lens L2;

R5: curvature radius of the object-side surface of the third lens L3;

R6: curvature radius of the image-side surface of the third lens L3;

R7: curvature radius of the object-side surface of the fourth lens L4;

R8: curvature radius of the image-side surface of the fourth lens L4;

R9: curvature radius of the object-side surface of the fifth lens L5;

R10: curvature radius of the image-side surface of the fifth lens L5;

R11: curvature radius of the object-side surface of the sixth lens L6;

R12: curvature radius of the image-side surface of the sixth lens L6;

R13: curvature radius of an object-side surface of the optical filterGF;

R14: curvature radius of an image-side surface of the optical filter GF;

d: on-axis thickness of the lens or a on-axis distance between thelenses;

d0: on-axis distance from the aperture S1 to the object-side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image-side surface of the first lens L1 tothe object-side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image-side surface of the second lens L2to the object-side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image-side surface of the third lens L3 tothe object-side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image-side surface of the fourth lens L4to the object-side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image-side surface of the fifth lens L5to the object-side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image-side surface of the sixth lens L6to the object-side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from an image-side surface to an image surface ofthe optical filter GF;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 −1.4500E+01  5.2800E−01 −1.3800E+00  2.6500E+00 −2.5500E+00 R2−4.9800E+00 −1.2800E−01 −6.6700E−03  3.8600E−02  4.7800E−01 R3−4.0000E+02 −2.9600E−01 3.6000E−01 6.4200E−01 −1.5800E+00 R4 −2.5800E+02−2.9900E−01 2.3700E−01 1.4900E+00 −3.7000E+00 R5  1.3300E+02 −5.0900E−011.2900E−01 2.5200E+00 −1.1800E+01 R6  5.4400E+00 −1.5400E−01−2.5600E−01  6.2600E−01 −8.0000E−01 R7 −4.0000E+02  7.6300E−02−8.9300E−02  3.7600E−02  3.0000E−02 R8 −1.5400E+01 −3.0800E−016.1500E−01 −9.3700E−01   1.0000E+00 R9 −4.0000E+02 −3.0800E−02−3.6300E−03  1.1700E−03  3.9900E−05 R10 −1.4200E+02 −7.5800E−024.3600E−02 −7.5100E−03  −8.5600E−04 R11 −1.2300E+02 −3.1400E−011.9400E−01 −5.5300E−02   9.1500E−03 R12 −1.0400E+01 −1.1600E−015.5400E−02 −1.4600E−02   2.0600E−03 Aspherical surface coefficients A12A14 A16 A18 A20 R1 −5.2800E−01  5.5600E+00 −8.9500E+00  6.8100E+00−2.0300E+00 R2 −1.3100E+00 −3.8300E−01 8.2300E−01 5.9000E−01 −4.1400E−01R3 −3.9500E+00  2.2400E+01 −3.6300E+01  2.2200E+01 −3.6300E+00 R4−5.2500E+00  5.2600E+01 −1.1500E+02  1.0600E+02 −3.7500E+01 R5 2.4400E+01 −1.4100E+01 −3.2500E+01  5.9400E+01 −2.8600E+01 R6 3.5500E−01  2.7200E−01 −4.4700E−01  2.2700E−01 −3.8600E−02 R7−2.3000E−02 −2.7700E−02 7.8600E−03 1.5400E−02 −6.1100E−03 R8 −5.1000E−01−8.4300E−03 1.2300E−01 −4.7900E−02   5.8200E−03 R9  3.0500E−05 6.8800E−05 2.9100E−05 1.2400E−06 −4.9800E−06 R10  1.5400E−04 7.2700E−05 6.5600E−06 −7.1400E−08  −1.0800E−06 R11 −6.7700E−04−2.5300E−04 6.9100E−05 1.8000E−06 −1.2000E−06 R12 −3.6800E−05−3.6600E−05 3.6000E−06 2.6500E−07 −4.0100E−08

Herein, K is a conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18and A20 are aspheric surface coefficients.

IH: an image height

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentdisclosure is not limited to the aspherical polynomial form shown in thecondition (1).

Table 3 and table 4 show design data of the inflexion points and thearrest point of the camera optical lens 10 in Embodiment 1 of thepresent disclosure. Herein, P1R1 and P1R2 represent the object-sidesurface and the image-side surface of the first lens L1, P2R1 and P2R2represent the object-side surface and the image-side surface of thesecond lens L2, P3R1 and P3R2 represent the object-side surface and theimage-side surface of the third lens L3, P4R1 and P4R2 represent theobject-side surface and the image-side surface of the fourth lens L4,P5R1 and P5R2 represent the object-side surface and the image-sidesurface of the fifth lens L5, P6R1 and P6R2 represent the object-sidesurface and the image-side surface of the sixth lens L6. The data in thecolumn named “inflexion point position” are vertical distances from theinflexion points arranged on each lens surface to the optic axis of thecamera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point Inflexion pointInflexion point number position 1 position 2 position 3 position 4 P1R11 0.805 0 0 0 P1R2 1 0.435 0 0 0 P2R1 2 0.585 0.685 0 0 P2R2 2 0.5150.815 0 0 P3R1 0 0 0 0 0 P3R2 2 0.385 1.065 0 0 P4R1 2 0.285 0.785 0 0P4R2 2 0.785 1.115 0 0 P5R1 3 0.375 1.345 1.625 0 P5R2 2 1.125 1.805 0 0P6R1 4 0.225 1.125 1.565 1.835 P6R2 1 0.465 0 0 0

TABLE 4 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 0 0 P1R2 1 0.665 0 P2R1 0 0 0 P2R2 2 0.665 0.875 P3R10 0 0 P3R2 2 0.665 1.155 P4R1 2 0.585 0.885 P4R2 0 0 0 P5R1 1 0.665 0P5R2 1 1.635 0 P6R1 1 0.405 0 P6R2 1 1.285 0

FIG. 2 and FIG. 3 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm, and 656.3 nm passes through the camera optical lens 10 inEmbodiment 1. FIG. 4 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 10 in Embodiment 1. The field curvatureS in FIG. 4 is a field curvature in the sagittal direction, and T is afield curvature in a tangential direction.

The following Table 13 shows various values of Embodiments 1, 2, 3corresponding to the parameters which are already specified in theconditions.

As shown in Table 13, Embodiment 1 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.680 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 82.14°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis aberrations are fully corrected,thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is substantially the same with Embodiment 1, and themeanings of symbols in this embodiment are the same with that ofEmbodiment 1. In the following, only differences are described.

Table 5 and table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0= −0.209 R1 1.606 d1= 0.499 nd1 1.5444 ν1 55.82R2 3.530 d2= 0.074 R3 381.436 d3= 0.285 nd2 1.5444 ν2 55.82 R4 −41.713d4= 0.254 R5 1103.683 d5= 0.530 nd3 1.6610 ν3 20.53 R6 3.057 d6= 0.104R7 −14.979 d7= 0.382 nd4 1.7504 ν4 44.94 R8 −1.892 d8= 0.377 R9 9.098d9= 0.290 nd5 1.5444 ν5 55.82 R10 −14.097 d10= 0.494 R11 3.655 d11=0.374 nd6 1.5346 ν6 55.69 R12 1.156 d12= 0.540 R13 ∞ d13= 0.210 ndg1.5168 νg 64.17 R14 ∞ d14= 0.198

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10R1 −1.4300E+01  5.6300E−01 −1.3700E+00  2.6500E+00 −2.5600E+00 R2−8.0900E+00 −1.3000E−01 1.6100E−02 7.9700E−02  4.9300E−01 R3 −3.9900E+02−3.0400E−01 3.3800E−01 6.2800E−01 −1.5800E+00 R4 −2.2800E+02 −2.4600E−011.8200E−01 1.4600E+00 −3.7100E+00 R5  3.9600E+02 −5.0400E−01 1.4800E−012.5800E+00 −1.1700E+01 R6  4.4400E+00 −1.7700E−01 −2.1800E−01 6.4000E−01 −7.9900E−01 R7 −4.0000E+02  7.7000E−02 −8.4000E−02 5.1900E−02  3.3900E−02 R8 −1.7300E+01 −3.0000E−01 6.2700E−01−9.3800E−01   1.0000E+00 R9 −4.0000E+02 −4.2900E−02 −2.2100E−03 1.4100E−03  1.7500E−06 R10 −3.6700E+02 −7.3700E−02 4.4400E−02−7.6300E−03  −8.6800E−04 R11 −1.2800E+02 −3.1200E−01 1.9000E−01−5.5500E−02   9.1100E−03 R12 −9.5900E+00 −1.1800E−01 5.4600E−02−1.4600E−02   2.0700E−03 Aspherical surface coefficients A12 A14 A16 A18A20 R1 −5.4500E−01  5.5500E+00 −8.9500E+00  6.8200E+00 −2.0000E+00 R2−1.3000E+00 −3.7000E−01 8.3200E−01 5.8400E−01 −4.6400E−01 R3 −3.9400E+00 2.2400E+01 −3.6200E+01  2.2300E+01 −3.4800E+00 R4 −5.2400E+00 5.2700E+01 −1.1500E+02  1.0600E+02 −3.7500E+01 R5  2.4500E+01−1.4100E+01 −3.2600E+01  5.9300E+01 −2.8600E+01 R6  3.5300E−01 2.7000E−01 −4.4900E−01  2.2500E−01 −4.0200E−02 R7 −2.3700E−02−2.8800E−02 7.2200E−03 1.5100E−02 −6.2400E−03 R8 −5.1000E−01 −8.0600E−031.2300E−01 −4.7900E−02   5.7400E−03 R9  4.7000E−05  9.0500E−053.7300E−05 1.0600E−06 −7.6000E−06 R10  1.2800E−04  6.2600E−05 5.3400E−06−4.1400E−08  −8.7100E−07 R11 −6.5800E−04 −2.4400E−04 7.1500E−051.8800E−06 −1.3900E−06 R12 −3.5300E−05 −3.6700E−05 3.5400E−06 2.6100E−07−3.7100E−08

Table 7 and table 8 show design data of inflexion points and arrestpoints of the camera optical lens 20 lens in Embodiment 2 of the presentdisclosure.

TABLE 7 Inflexion point Inflexion point Inflexion point Inflexion pointInflexion point number position 1 position 2 position 3 position 4 P1R11 0.805 0 0 0 P1R2 1 0.455 0 0 0 P2R1 3 0.035 0.635 0.665 0 P2R2 2 0.5050.825 0 0 P3R1 1 0.015 0 0 0 P3R2 1 0.395 0 0 0 P4R1 2 0.275 0.995 0 0P4R2 2 0.735 1.165 0 0 P5R1 3 0.335 1.345 1.555 0 P5R2 2 1.065 1.745 0 0P6R1 4 0.215 1.245 1.425 1.745 P6R2 1 0.465 0 0 0

TABLE 8 Arrest point Arrest point Arrest point number position 1position 2 P1R1 0 0 0 P1R2 1 0.685 0 P2R1 1 0.045 0 P2R2 2 0.635 0.875P3R1 1 0.025 0 P3R2 1 0.705 0 P4R1 2 0.515 1.145 P4R2 0 0 0 P5R1 1 0.6150 P5R2 0 0 0 P6R1 1 0.395 0 P6R2 1 1.205 0

FIG. 6 and FIG. 7 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm and 656.3 nm passes through the camera optical lens 20 inEmbodiment 2. FIG. 8 shows schematic diagrams of a field curvature and adistortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 20 in Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the various conditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.696 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 81.51°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is substantially the same with Embodiment 1, and themeanings of symbols in this embodiment are the same as that ofEmbodiment 1. In the following, only differences are described.

Table 9 and table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R D Nd Nd S1 ∞ d0= −0.175 R1 1.711 d1= 0.308 nd1 1.5444 ν1 55.82R2 3.601 d2= 0.078 R3 25.127 d3= 0.603 nd2 1.5444 ν2 55.82 R4 45.036 d4=0.199 R5 20.160 d5= 0.499 nd3 1.6610 ν3 20.53 R6 2.911 d6= 0.050 R7−100.676 d7= 0.383 nd4 1.7504 ν4 44.94 R8 −2.034 d8= 0.518 R9 7.754 d9=0.288 nd5 1.5444 ν5 55.82 R10 −16.630 d10= 0.506 R11 3.108 d11= 0.367nd6 1.5346 ν6 55.69 R12 1.175 d12= 0.540 R13 ∞ d13= 0.210 ndg 1.5168 νg64.17 R14 ∞ d14= 0.055

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 R1 −2.0700E+01  5.5000E−01 −1.3800E+00  2.6300E+00 −2.5800E+00  R2−3.6300E−01 −1.0500E−01 7.9600E−02 1.5100E−01 5.7300E−01 R3  4.0000E+02−2.3900E−01 3.5900E−01 6.3700E−01 −1.5700E+00  R4 −4.0000E+02−3.3100E−01 2.2800E−01 1.2600E+00 −3.7400E+00  R5 −2.4800E+02−5.2200E−01 −2.5000E−02  2.8500E+00 −1.1800E+01  R6  4.0700E+00−1.6100E−01 −2.3600E−01  6.6500E−01 −8.1500E−01  R7 −4.0000E+02 1.1600E−01 −1.1200E−01  5.8000E−02 4.4100E−02 R8 −1.7400E+01−3.0200E−01 6.4300E−01 −9.3900E−01  9.9400E−01 R9 −4.1900E+02−3.8300E−02 −9.6800E−03  4.5400E−03 5.8700E−04 R10 −4.0000E+02−6.4400E−02 3.9500E−02 −6.7400E−03  2.8800E−04 R11 −2.6300E+02−2.9900E−01 1.8600E−01 −5.3200E−02  8.5000E−03 R12 −1.7300E+01−1.0800E−01 5.4100E−02 −1.4700E−02  2.1500E−03 Aspherical surfacecoefficients A12 A14 A16 A18 A20 R1 −5.6700E−01  5.5300E+00 −8.9400E+00 6.8900E+00 −1.8000E+00 R2 −1.2000E+00 −2.4300E−01 9.9600E−01 7.9000E−01−2.3800E−01 R3 −3.9100E+00  2.2500E+01 −3.6100E+01  2.2600E+01−2.9000E+00 R4 −5.2800E+00  5.2500E+01 −1.1400E+02  1.0600E+02−3.7200E+01 R5  2.4600E+01 −1.4100E+01 −3.2900E+01  5.8900E+01−2.8000E+01 R6  3.5200E−01  2.7400E−01 −4.4800E−01  2.2100E−01−3.8700E−02 R7 −2.6200E−02 −3.2800E−02 7.6000E−03 1.6600E−02 −6.9700E−03R8 −5.0700E−01 −6.0200E−03 1.2200E−01 −4.8900E−02   6.0900E−03 R9 9.5100E−05  6.5700E−05 1.1300E−06 −1.6200E−05   4.1900E−07 R10−9.2300E−05 −2.7000E−05 1.0300E−05 7.3200E−06 −1.7700E−06 R11−6.8500E−04 −2.1600E−04 7.2500E−05 6.1200E−07 −1.3600E−06 R12−4.2000E−05 −3.7400E−05 3.6900E−06 2.5100E−07 −3.7200E−08

Table 11 and table 12 show design data of inflexion points and arrestpoints of the camera optical lens 30 lens in Embodiment 3 of the presentdisclosure.

TABLE 11 Inflexion point Inflexion point Inflexion point Inflexion pointnumber position 1 position 2 position 3 P1R1 0 0 0 0 P1R2 0 0 0 0 P2R1 20.125 0.475 0 P2R2 3 0.085 0.615 0.735 P3R1 1 0.095 0 0 P3R2 1 0.415 0 0P4R1 2 0.095 1.015 0 P4R2 2 0.715 1.145 0 P5R1 3 0.335 1.255 1.605 P5R22 0.975 1.795 0 P6R1 3 0.195 1.165 1.475 P6R2 1 0.405 0 0

TABLE 12 Arrest point Arrest point Arrest point Arrest point numberposition 1 position 2 position 3 P1R1 0 0 0 0 P1R2 0 0 0 0 P2R1 2 0.2150.585 0 P2R2 1 0.135 0 0 P3R1 1 0.155 0 0 P3R2 1 0.765 0 0 P4R1 2 0.1451.175 0 P4R2 0 0 0 0 P5R1 3 0.625 1.545 1.635 P5R2 1 1.435 0 0 P6R1 10.375 0 0 P6R2 1 1.115 0 0

FIG. 10 and FIG. 11 show schematic diagrams of a longitudinal aberrationand a lateral color obtained when light with wavelengths of 486.1 nm,587.6 nm, and 656.3 nm passes through the camera optical lens 30 inEmbodiment 3. FIG. 12 shows schematic diagrams of a field curvature anda distortion obtained when light with a wavelength of 587.6 nm passesthrough the camera optical lens 30 in Embodiment 3.

The following Table 13 shows the values corresponding to the conditionsin this embodiment. Obviously, this embodiment satisfies the variousconditions.

In this embodiment, an entrance pupil diameter of the camera opticallens is 1.561 mm, an image height of 1.0H is 3.000 mm, an FOV (field ofview) is 86.04°. Thus, the camera optical lens has a wide-angle and isultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters and conditions Embodiment 1 Embodiment 2 Embodiment3 f 3.361 3.392 3.122 f1 5.259 4.958 5.665 f2 48.343 69.085 103.300 f3−4.834 −4.639 −5.207 f4 2.800 2.850 2.762 f5 9.021 10.202 9.754 f6−3.641 −3.336 −3.784 f12 4.839 4.676 5.368 FNO 2.00 2.00 2.00 f2/f3−10.00 −14.89 −19.84 d1/d3 2.89 1.75 0.51

Persons of ordinary skill in the art can understand that, the aboveembodiments are specific examples for implementing the presentdisclosure, and during actual application, various changes may be madeto forms and details of the examples without departing from the spiritand scope of the present disclosure.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens and a sixth lens, the first lens has apositive refractive power, the second lens has a positive refractivepower, and the third lens has a negative refractive power; wherein thecamera optical lens satisfies the following conditions:−20.00≤f2/f3≤−10.00; and0.50≤d1/d3≤3.00; where f2 denotes a focal length of the second lens; f3denotes a focal length of the third lens; d1 denotes an on-axisthickness of the first lens; and d3 denotes an on-axis thickness of thesecond lens.
 2. The camera optical lens according to claim 1, furthersatisfying the following conditions:−19.92≤f2/f3≤−10.00; and0.51≤d1/d3≤2.95.
 3. The camera optical lens according to claim 1,wherein an object-side surface of the first lens is convex in a paraxialregion and an image-side surface of the first lens is concave in theparaxial region; wherein the camera optical lens satisfies the followingconditions:0.73≤f1/f≤2.72;−5.72≤(R1+R2)/(R1−R2)≤−1.78; and0.03≤d1/TTL≤0.18; where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; R1 denotes acurvature radius of an object-side surface of the first lens; R2 denotesa curvature radius of an image-side surface of the first lens; and TTLdenotes a total optical length from the object-side surface of the firstlens to an image surface of the camera optical lens along an opticalaxis.
 4. The camera optical lens according to claim 3, furthersatisfying the following conditions:1.17≤f1/f≤2.18;−3.58≤(R1+R2)/(R1−R2)≤−2.22; and0.05≤d1/TTL≤0.15.
 5. The camera optical lens according to claim 1,wherein the camera optical lens satisfies the following conditions:7.19≤f2/f≤49.63;−7.05≤(R3+R4)/(R3−R4)≤6.26; and0.02≤d3/TTL≤0.20; where f denotes a focal length of the camera opticallens; R3 denotes a curvature radius of an object-side surface of thesecond lens; R4 denotes a curvature radius of an image-side surface ofthe second lens; and TTL denotes a total optical length from theobject-side surface of the first lens to an image surface of the cameraoptical lens along an optical axis.
 6. The camera optical lens accordingto claim 5, further satisfying the following conditions:11.51≤f2/f≤39.71;−4.41≤(R3+R4)/(R3−R4)≤5.01; and0.03≤d3/TTL≤0.16.
 7. The camera optical lens according to claim 1,wherein an image-side surface of the third lens is concave in a paraxialregion; wherein the camera optical lens satisfies the followingconditions:−3.34≤f3/f≤−0.91;0.50≤(R5+R6)/(R5−R6)≤2.01; and0.05≤d5/TTL≤0.17; where f denotes a focal length of the camera opticallens; R5 denotes a curvature radius of an object-side surface of thethird lens; and R6 denotes a curvature radius of an image-side surfaceof the third lens; d5 denotes an on-axis thickness of the third lens;and TTL denotes a total optical length from the object-side surface ofthe first lens to an image surface of the camera optical lens along anoptical axis
 8. The camera optical lens according to claim 7, furthersatisfying the following conditions:−2.08≤f3/f≤−1.14;0.80≤(R5+R6)/(R5−R6)≤1.61; and0.08≤d5/TTL≤0.14.
 9. The camera optical lens according to claim 1,wherein the fourth lens has a positive refractive power, and anobject-side surface of the fourth lens is concave in a paraxial regionand an image-side surface of the fourth lens is convex in the paraxialregion; wherein the camera optical lens satisfies the followingconditions:0.42≤f4/f≤1.33;0.52≤(R7+R8)/(R7−R8)≤1.97; and0.04≤d7/TTL≤0.16; where f denotes a focal length of the camera opticallens; f4 denotes a focal length of the fourth lens; R7 denotes acurvature radius of an object-side surface of the fourth lens; R8denotes a curvature radius of an image-side surface of the fourth lens;d7 denotes an on-axis thickness of the fourth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 10.The camera optical lens according to claim 9, further satisfying thefollowing conditions:0.67≤f4/f≤1.06;0.83≤(R7+R8)/(R7−R8)≤1.58; and0.07≤d7/TTL≤0.13.
 11. The camera optical lens according to claim 1,wherein the fifth lens has a positive refractive power, and anobject-side surface of the fifth lens is convex in a paraxial region andan image-side surface of the fifth lens is convex in the paraxialregion; wherein the camera optical lens satisfies the followingconditions:1.34≤f5/f≤4.69;−0.73≤(R9+R10)/(R9−R10)≤0.13; and0.03≤d9/TTL≤0.09; where f denotes a focal length of the camera opticallens; f5 denotes a focal length of the fifth lens; R9 denotes acurvature radius of an object-side surface of the fifth lens; R10denotes a curvature radius of an image-side surface of the fifth lens;d9 denotes an on-axis thickness of the fifth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 12.The camera optical lens according to claim 11, further satisfying thefollowing conditions:2.15≤f5/f≤3.75;−0.46≤(R9+R10)/(R9−R10)≤0.10; and0.05≤d9/TTL≤0.08.
 13. The camera optical lens according to claim 1,wherein the sixth lens has a negative refractive power, and anobject-side surface of the sixth lens is convex in a paraxial region andan image-side surface of the sixth lens is concave in the paraxialregion; wherein the camera optical lens satisfies the followingconditions:−2.42≤f6/f≤−0.66;0.96≤(R11+R12)/(R11−R12)≤3.32; and0.04≤d11/TTL≤0.12; where f denotes a focal length of the camera opticallens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of an object-side surface of the sixth lens; R12denotes a curvature radius of an image-side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from the object-side surface of the first lens toan image surface of the camera optical lens along an optical axis. 14.The camera optical lens according to claim 13, wherein furthersatisfying the following conditions:−1.52≤f6/f≤−0.82;1.54≤(R11+R12)/(R11−R12)≤2.66; and0.06≤d11/TTL≤0.10.
 15. The camera optical lens according to claim 1,wherein the camera optical lens satisfies the following condition:0.69≤f12/f≤2.58; where f12 denotes a combined focal length of the firstlens and the second lens; and f denotes a focal length of the cameraoptical lens.
 16. The camera optical lens according to claim 15, furthersatisfying the following condition:1.10≤f12/f≤2.06.
 17. The camera optical lens according to claim 1,wherein a total optical length TTL from an object-side surface of thefirst lens to an image surface of the camera optical lens along anoptical axis is less than or equal to 5.16 mm.
 18. The camera opticallens according to claim 17, wherein the total optical length TTL of thecamera optical lens is less than or equal to 4.92 mm.
 19. The cameraoptical lens according to claim 1, wherein an F number of the cameraoptical lens is less than or equal to 2.06.
 20. The camera optical lensaccording to claim 19, wherein the F number of the camera optical lensis less than or equal to 2.02.